Envelope-making machine



Sept. 3, 1929.

c. E.. DAMM'AR v 1,726,655

ENVELOPE MAKING MACHINE Filed Oct. 25, 1926 5 Sheets-Sheet 1 CHER/EsEDHMMHRT.

.HTTORNQYS Sept. 3, 1929. c. E. DAMMART 1,726,655

' I ENVELOPE MAKING MACHINE Filed oct. 25. 1926 Smeets-sheet 2 INVENTQRCHHRLES EDHMMHRT ywwaqm FITTORNEYS SePt- 3, 1929. c. E. DAMMART`ENVELOPE MAKING MACHINE 5 Shlets-Sheet 3 Filed Oct. 25, 1926 INVENTORCHHRLES EDHMMF/HT f F16. Bymmwm Flr-roaNEys Sept. 3, 1929. c. E'.DAMMART 1,726,655

ENVELOPE MAKING MACHINE Filed oct, 25, 192s 5 sheets-sheet 4 F I5 Y INVENTOR y GHHRLEs/EDHMMHRT Bg/@W Fl TToRNg'ys 'IY C. E. DAMMARTENVEILOPE MAKING MACHINE Sept. 3, 1929.

' Filed oct. 25, 1926 5 sheets-sheet 5 INVENTOR CHHRLES E. DHMMHRT Si tIIIIIIIIIIIIL Cri Patented Sept. 3, 1929.

CHARLES E. DAMMART, OF MINNEAPOLIS., MINNESOTA.

ENVELOPE-MAKING MACHINE.

Application inea october a5, 1926. serial No. 144,031.`

This invention relates to improvements in envelope-making machines,generally, and more particularly to those machines which are capable ofmaking envelopes having a transparent window in the face thereof, and anobject of the invention is to provide means for cutting off portions oftransparent window material and applying such severed portions orpatches directly onto the envelope blank over the` Window openingtherein, the surfaces of the blank encircling the opening having beenpreviously gummed to secure the patches of window material thereto.

A further object of the invention is to provide an envelope-makingmachine including a hollow cylinder having means therein for supportinga roll of transparent sheet window material, and also having meanstherein for feeding the window material'from the interior of thecylinder through an opening in the periphery thereof, as the cylinder isrotated, and subsequently severing the material at the periphery of thecylinder after the gummed envelope blank engages the cylinder, therebytransferring the severed portion or patch of window material from thehollow cylinder directly onto the envelope blank.

A further object of the invention is to provide a mechanism adapted foruse in connection with an ordinary envelope-making machine of the typecapable of making envelope blanks having window openings in the facesthereof, to cause such a machine to apply a patch of transparent window`material over the window opening in'each envelope blank, as the blankspass through the machine, said mechanism having means for varying thesize of the patch to suit various sizes of window openings.

A further object is to provide a mechaniem for applying transparentpatches of sheet material over window openings in the faces of envelopeblanks, such mechanism including a hollow cylinder having means 'thereinfor supporting a roll of transparent sheet material; a variable speedfeeding mechanism in the cylinderl for feeding the material therefromthrough an elongated opening in the peripheral wall of the cylinder; anda cutting device also in the cylinder for transversely severingthematerial 'when a predetermined length has been fed from the cylinder,the length of the patch thus severed from the roll being governed by thewidth of the window'opening in the blank on which it is to be applied.

Other objects of the invention are: to `provide such a mechanism ofsimple and inexpensive construction, and, which can be applied tovarious types `of ordinary envelopemaking machines now in use; toprovide a cylinder for supporting the roll of transparent windowmaterial, and wherein substantially all of the operating mechanism forfeeding and cutting the window material is housed; 'to provide means forapplying the patch of window material directly onto the blankimmediately after it is severed from the roll, thus preventing the patchfrom shifting or moving with respect to the blank when appliedthereto',L and to provide a mechanism for applying such transparentpatches to envelope blanks having means for varying the size of thepatch to suit practically all standard sizes of envelope windowopenings.

Other objects of the invention will appear from the followingdescription 'and the accompanying drawings and will be pointed out inthe annexed claims.

In the accompanying drawings, there has been disclosed a structuredesigned to carry out the various objects of the invention but it is tobe understood that the invention is not confined to the exact featuresshown as various changes may be made Within the scope of the claimswhich follow.

In the accompanying drawings formingpart of this specification,

Figure l is a sectional elevation of a form of envelope-making machineshowing the invention applied thereto;

Figure 2 is a vertical sectional view showing in a general way, theoperating mechanism mounted within the cylinder;

Figure 3 is a vertical sectional view on the line 2%*3 of Figure 2;

Figure 4 `is an enlarged detail sectional view on the line 4 4 of Figure2;

Figure 5 is an enlarged detail view showing the means provided at oneend of the cylinder for actuating the movable blade of the cuttingdevice; e

Figure 6 is a plan view of the frame supporting the cutting deviceFigure? is a detail sectional et the spindle for supporting the roll ofwindow material, showing the means provided within the cylinder forsupporting the same;

Figure 8 is a view of the spindle removed from the cylinder; l

Figure 9 is an enlarged detail sectional view on the line 9-9 of Figure7;

Figure 10 is a detail sectional view on the line 10-10 of Figure 7;

Figure 11 is an enlarged detail sectional view on the line 11-11 ofFigure 2, showing the means for adjusting the position of the frictionwheel upon the hollow shaft;

Figure 12'is a cross sectional view on the line 12-12 of Figure 11;

Figure 13 is a plan view of a blank showing a window opening therein anda patch of transparent windovs7 material positioned thereover; and

Figure 14 is a'view showing a completed envelope having a windowtherein.

In the selected embodiment of the invention here shown for purposes ofdisclosure, there is illustrated a portion of an envelopemaking machine,comprising a main frame 15 having the usual pressure cylinder 16 andgumming cylinder 17 rotatably mounted thereon. The usual ygumming device18 is mounted on the frame 15 above the gumming cylinder 17. A conveyor19 delivers the envelope blanks 21 to the pressure cylinder 16 andgumming cylinder 18, as shown in Figure 1.

An important feature of this invention resides in the novel meansprovided for applying the windows or patches of transparent material tothe envelope blanks, after they have passed between the cylinders 16 and17, and the surface thereof has been gummed to receive the windowpatches. Such means consist of a hollow cylinder 22 rotatably mounted inbearings provided on the frame 15, and having a geared connection withthe pressure cylinder 16, as showin in Figures 1 and 2. The cylinders 16and 17 are similarly geared together for simultaneous operation. Asshown in Figures 1 and 2, the transparent material from which thewindows are made, is mounted in the form of a roll 23 within the hollowcylinder 22. A spindle 24 is mounted in the cylinder to provide asupport for the material 23. This spindle, it will be noted by referenceto Figures 7, 8, 9 and 10. is demountably supported within the cylinder`22. One end thereof is supported in a bearing 25, and the opposite endthereof is removably retained in a support 26 secured to one end of thecylinder by bolts as shown. This support 26 is open on one side, asshown in Figures 9 and 10, and is provided with key ways 27, arranged toreceive keys 28 terminally secured to the end of the spindle 24, asshown in Figures 7 and 10.

A set screw 29 provided in the support 25 to secure the spindle thereto,when the machine is in operation. The construction of the support 26 issuch that when the set screw 29 is loosened, the spindle 24 may beaxially moved in the supports in a direction toward the support 26 so asto move the keys 28 out of engagement, or out from under the lugs 31,after which the Spindle may readily be removed from the supports 25 and26, as indicated in dotted lines in Figure 7.

Roll 23 of transparent material is adjustrably positioned upon thespindle 24 by the discs 32 and 33. The disc 32 has an integral sleeve 34thereon, having its outer end slidably received in a bore 35, providedin a split clamping member 36, adjustably secured to the spindle bymeans of a clamp nut 37, received in threaded engagement therewith. Thedisc 33 is provided with an exteriorly threaded extension 38 having alock nut 39 mounted thereon for securing the disc 33 in adjustedpositions. The extension 38 is split, as shown in Figure 8, and-is alsoslightly tapered so that when the nut 39 is rotated in a directiontoward the disc, the extension 38 will securely clamp the disc to thespindle 24. A compression spring 41 is coiled about the sleeve 34 of thedisc 32, and terminally engages the disc 32 and the clamping member 36.Thus by means of the above mechanism, the roll 23 of window material maybe longitudinally adjusted upon the spindle 24 to properly aline it withthe window openings in the envelope blanks. In operation the discs 32and 33 are engaged with opposite sides of the roll 23 as shown in Figure2, the adjustment of the discs being such as to put the compressionspring 41 under a slight tension, suliicient to frictionally prevent theroll 23 from over-running during the operation of the machine. The roll,however, is rotatable upon the spindle, such rotation being governed bythe feeding of the window material from the interior of the cylinder 22.The spindle 24 is nonrotatable with respect to the cylinder. A door orcover 42 is provided in the periphery of the c linder 22 by means ofwhich access may e had to the interior of the cylinder for the purposeof removing the spindle 24, when it is necessary to mount a new roll ofwindow material thereon.

The means provided for feeding the sheet window material from theinterior of the cylinder consists of a pair of feeding rolls 43 and 44suitably geared together for simultaneous operation by means of gears 45and 46, shown in dotted lines in Figure 4 and full lines in Figure 2.The feed roll 43 is rotatably mounted in suitable bell-cranks 47,pivotally mounted within the cylinder, as shown in Figures 1 and 4.Tension springs 48 connect one end of each bell-crank wit the cylinderwall in such a manner as to cause the feed roll 43 to be yieldably heldin contact with the periphery of the feed roll 44 to feed the webbingtherebetween. (See Figure 4.) The cylinder 22 preferably comprises twosections, the main section, in which the roll 23 of window material ismounted, and adjacent the periphery of which is mounted the feeding andcutting mechanism for the window material. The comparatively smallersection 49 of the .cylinder provides a housing for the driving mechanismfor the feed rolls 43 and 44, clearly shown in Figure 2.

The relatively smaller section 49 provides a housing for the drivingmechanism for the feed rolls 43 and 44, as shown in Figure 2. Theabutting ends of the two cylinder sections are provided with annularflanges adapted to receive bolts for securing together the two sections.The feed roll 44 has a reduced end portion 51 mounted in a bearingbracket 52 suitably secured to the flange of the cylinder section 49. Abeveled gear 53 is terminally secured to the reduced end portion 51 andmeshes with a beveled pinion 54 terminally mounted upon an uprighthollow shaft 55 rotatably mounted in bearings 56 and 57 for movementwith the cylinder. (See Figure 2.) The bearing 56 may be integrallyformed with the bearing bracket 52, while the bearing 57 is preferablybolted to a bracket 58 secured to the annular flange of the cylindersection 49. This bracket 58 is preferably integrally formed with thesupport 25, supporting one end of the spindle 24.

A friction wheel 59 is slidably mounted upon the hollow shaft 55 andfrictionally engages a. driving disk 6l, slidably mounted upon a sleeve62 secured to the main frame 15. The disk 61 is locked against rotationby means of a key 63 mounted in the sleeve 62. A threaded cap 64 isterminally secured to an adjusting rod 65, mounted in a bore in thesleeve 62. This cap 64 is in threaded engagement with a threadedextension 66 provided on thedisk 61. Referring to Figure 2, it will benoted that the inner face of the cap 64 engages the adjacent end of thesleeve 62. This cap is also fixedly secured to the rod by means of a nut67 as shown. The opposite end of the rod 65 is threaded to receive alocknut 68. When this nut is loosened, the rod 65 may be relativelyrotated within the sleeve 62 by means of its squared end 69. Suchrotation of the rod 65 will move the disk 61 to or from the frictionwheel 59 to increase or decrease the frictional contact between wheeland disk.

The friction wheel 59 is slidably mounted upon the shaft 55 to providefor varying the feeding of the window material from the interior of thecylinder. The means provided for thus adjusting the position of thewheel 59 upon the shaft 55 is clearly shown in Figure 11, and comprisesa threaded stem 7l axially mounted within the shaft 55 and having athreaded engagement with a block 72, secured to the hub 78 of thefriction wheel 59. The block 72 has a lug 74 engaged in a slot 75terminally provided in the hub 73, as shown. A cap screw 76 secures theblock to the hub 73. The shaft 55 is provided with a longitudinal slot77 in which a portion of the threaded block 72 slides, when the frictionwheel 59 is adjusted upon the'shaft (see Figure 12). This slot 77 also`prevents the friction wheel from relatively rotating upon the shaft 55.A threaded cap 78 is terminally mounted upon the shaft 55 and is securedthereto by means of a setscrew 79. The threaded stem 71 is provided withan annular head or flange81 adapted to engage the end of the hollowshaft 55 and also the adjacent inner face of the cap 78, as shown inFigure 11. This flange prevents the stem 71 from longitudinally movingwith respect to the shaft 55. The projecting end 82 of the stem 71 issquared to receive a socket wrench83, as shown in dotted lines in Figure2. An aperture 84 is provided in the wall of the cylinner section 49through which the wrench 88 may be inserted to engage the stem 71. Aspring-actuated cover plate 85 normally closes the aperture 84. By meansof the above described mechanism, the relative position of the frictionwheel 59 upon the hollow shaft 55 may readily be adjusted from theexterior of the cylinder, to vary the feeding of the material from thecylinder to correspond to the width of the window opening in theenvelope blank.

The means provided for severing the web of window material after apredetermined length thereof has been fed from the cylinder, consists ofa movable knife blade 86 secured to a shaft 87, mounted in bearingsprovided in a frame 88, kdemountably secured to the peripheral wall ofthe cylinder as shown in Figure 4. A stationary blade 89 is secured tothe frame 88 between which and the movable blade, the web of material isfed as shown in Figure 4. An elongated opening or slot 91 is provided inthe frame 88 through which the web of window material is fed from theinterior of the cylinder by means of the feed rolls 43 and 44. The shaft87 projects from one end of the frame 88 and has an arm 92 terminallysecured thereto, having a roller 93 mounted thereon adapted to engage astationary cam 94, adjustably secured to the main frame 15, as shown indotted lines in Figure 2. When the cylinder isrotated, the roller 93will engage the cam 94, as indicated in dotted lines in Figure 5,thereby oscillating it from the full to the dotted line position, shownin this figure, with the resultant actuation of the movable knife orblade 86, thereby severing the web. The arm 92 is provided with a lug 95which is engaged by one end of a compression spring 96, the other end ofwhich is seated against a stationary lug 97 provided upon the end wallof the cylinder. An adjusting screw 98 is mounted in a similar lug 99and engages the lug 95 of the arm 92 to provide a limit stop therefor,and also to provide means for adjusting the position of the knife blade86 with respect to the stationary blade 89. A spring-actuated bar 101 ismovably mounted in the frame 88 and normally is retained in the positionshown in Figure 4. When the movable blade 86 is actuated to sever theweb, the bar 101 will be depressed against the tension of the spring102. As soon as the blade 86 ret-urns to its normal position, the bar101 will return to its normal position, thereby guiding the web ofmaterial over the edge of the stationary blade 89 and through theelongated opening 91, through which it is fed from the interior of thecylinder. The construction and arrangement of the knife-holding frame 88is such that it may readily be removed from the cylinder, when desired,to allow for adjusting` the blades 86 and 89 and for sharpening` themwhen it becomes necessary.

In the operation of this novel mechanism for applying windows toenvelope blanks, the blanks are fed between the pressure cylinder orroll 16 and the hollow cylinder 22. During the rotation of the cylinder22, the window material will be fed from the interior of the cylinderthrough the elongated opening in the knife frame 88, at a speedcorresponding to the length of patch required for covering the size ofthe window opening in the blank, as shown in Figure 13. As soon as theend of the window material, projecting from the interior of thecylinder, engages the envelope blank, the movable blade 86 will beactuated to sever the web, after which it will be pressed into contactwith the adijacent face of the blank and secured thereto as a result ofthe surface of the blank previously having been gummed by the gummingcylinder 17. After the patch of window material. has thus been appliedto the blank, the latter may be discharged onto a suitable receivingmeans suoli as the flysticks 103, and subsequently deposited onto atable 104, as shown in Figure 1. The cylinder 22 and its operatingmechanism is so constructed that the feeding of the material from thecylinder may be varied to suit practically all standard sizes of windowopenings. The roll of window material may also be longitudinallyadjusted upon the spindle 24 to properly align it with the windowopenings in the blanks. The length of the cylinder 22 is sufhcient toallow for maximum widths of window material, as will readily be seen byreference to Figure 2. Thus, the above described mechanism is applicablefor practically all sizes of envelope window openings. 1t will also benoted by reference to Figures 1 and 2, that the window-applyingmechanism is all contained within the cylinder 22, thereby providingsuch a device which may be used as an attachment for envelope-makingmachines of ordinary construction, thereby adapting such machines foruse in applying the windows to the window openings in the blanks in thesame operation as` the envelopes are made, thereby greatly reducingthecost of manufacturing envelopes having windows in the faces thereof.

I claim as my invention:

1. The combination with a cylinder mounted for rotation and having anelongated opening in its periphery, of a roll of sheet material mountedin the cylinder, means for feeding the material from the cylinderthrough said elongated opening, simultaneously as the cylinder isrotated, means for varying the vfeed of the material, and a cuttingmeans for severing said sheet upon a predetermined rotation of thecylinder.

2. A machine of the class described, including in combination, a pair ofrolls for feeding envelope blanks having window openings therein, adevice for gumming the surface of each blank around the window opeingthereof, a cylinder mounted adjacent one of said rolls and cooperatingtherewith to receive the gummed envelopes therebetween, a supply oftransparent sheet material stored in the cylinder, an adjustable feedingmechanism for feeding predetermined length of said material from thecylinder simultaneously as the latter is rotated, and a cutting devicefor severing said sheet whereby the severed portion may be transferredonto the gummed surface of the blank to provide a window for the openingtherein.

3. A machine of the class described, including in combination, a pair ofrolls for feeding envelope blanks having window openings therein, adevice for gumming the surface of each blank around the window openingthereof, a cylinder mounted adjacent one of said rolls and between whichroll and cylinder the blanks are successively fed, a supply oftransparent sheet material stored in the cylinder, a variable speedfeeding mechanism in the cylinder for feeding the material from thecylinder simultaneously as it is rotated, a cutting device fortransversely severing the sheetadj acent the cylinder periphery wherebythe severed portion may be transferred onto the gummed surface of theblank to provide a window ,for the opening therein, and means eXteriorlyof the cylinder for actuating said cutting device.

4. A machine of the class described, including a pair of rolls betweenwhich envelope blanks are fed, a device for gumming llO the surface ofeach blank around the lwiIldow opening thereof, a cylinder mountedadjacent one of said rolls and having a driving connection therewith,said roll and cylinder being arranged to receive they gummed blankstherebetween, a roll of` `transparent sheet window material rotatablymounted within the cylinder, feed rolls in the cylinder for graduallyfeeding the material therefrom through an opening in the wall of thecylinder, a `cutting device in the cylinder for transversely severingthe material, whereby the severed portion thereof will be transferredontoand secured to a blank to provide a window yfor the opening thereof,when the latter is passed between the cylinder and its complementaryroll, and a variable speed driving mechanism in the cylinder foroperating said feed rolls. n

, 5. A machine of the class described, including in combination, a meansfor feeding envelope blanks having window openings therein, a device forgumming the surface of each blank around the window opening thereof, ahollow cylinder, a complementary roll mounted adjacent the cylinder andhaving a geared connection therewith, said cylinder and roll beingarranged to receive and feed ythe gummed blanks therebetween, a roll oftransparent sheet window material rotatably mounted within the cylinder,feed rolls in the cylinder adapted to continuously feed the materialtherefrom through an opening in the wall of the cylinder, when thelatter is rotated, a cutting device inl the cylinder for transverselysevering the material at the periphery of the cylinder when thelmaterial fed lfrom the c 11nder engages the complementary roll, w erebythe severed portion thereof may be ytransferred onto and secured toagummed blank to provide a window for the opening therein, when thelatter is passed between the cylinder and said roll, and an operatingmechanism in the cylinder for varying the feeding of the material fromthe cylinder.

6. A machine of the class described, including a mechanism ,for feedingandgumming envelope blanks having window openings therein, a cylindermounted for rotation adjacent said feeding mechanism, a spindleremovably mounted within said cylinder and adapted to support a roll oftransparent sheet window material, a pair of feed rolls mounted in thecylinder and adapted to feed the material from the interior of thecylinder through an opening in the wall thereof, a cutting devicemounted adjacent the periphery of the cylinder, said device including astationary blade and a movable blade mounted in a frame demountablysecured to the wall of the cylinder and forming a portion of theperiphery thereof, and means at one end of the frame for operating` saidmovable blade.

7. A machine of the class described, including a rotatably mountedcylinder, a

spindle mounted within said cylinder and adapted to support a roll ofsheet material, a-pair of feed rolls mounted in the cylinder and adaptedto feed the material from the interiorof thev cylinder through anopening in the wall thereof, a cutting device for the material, mountedadjacent the periphery of the cylinder and operable from the exterior`of the cylinder to sever the material upon a predetermined rotation ofthe cylinder, anda friction drive for the feed rolls mounted within thevc linder and operable, upon rotation `of tie cylinder, to rotate thefeed rolls to feed the material from the cylinder, said driveincludingfa disk having a wheel frictionally engaged therewith andadjustable to vary the feed of the material from the cylinder.

8. A machine of the class described, including a cylinder mounted forrotation and having an elongated opening in the wall thereof, a spindleremovably' mounted'within the cylinder and adapted to sup ort a roll ofsheet window material, fee rolls in the cylinder for feedin the materialtherefrom, a cutting rdevice a so in the cylinder for severing thematerialafter a predetermined length has been fed Athrough the openingin the wall ofthe cylinder, a shaft diametrically mounted in saidcylinder and having a geared connection with one of said feed rolls, anda friction wheel slidablymounted upon said shaft and engagable withastationary disc for transmitting rotary movement to said feed rollswhen said cylinder is rotated.

9. A machine of the class described,in cluding a cylinder mounted forrotation and having an elongated opening in the wall thereof, a. spindleremovably mounted within the cylinder and adapted to support a roll ofsheet material, a mechanism in the cylinder for feeding the materialtherefrom, a cutting device also in the cylinder for severing thematerial after a predetermined length has been fed through the openinginthe wall of the cylinder, a hollow shaft diametrically mounted in saidcylinder and having a geared connection with said feeding mechanism, afriction wheel slidably mounted upon said shaft and engagable with astationary disc for transmitting rotary movement to said mechanism whenthe cylinder is rotated, and means mounted in said hollow shaft foradjusting the position of said friction wheel upon said shaft to varythe feeding of the material from the cylinder.

10. A machine of the class described, `including a rotatably mountedcylinder, means therein for receiving and supporting a roll of sheetmaterial, geared-together rolls for feeding the material from thecylinder when the latter is rotated, a friction drive for operating saidfeed rolls, said drive including a friction Wheel rotatably mounted formovement with the cylinder, land a stationary dise also mounted inthecylinder and frictionallyengaging said wheel.

11. A machine of the class described, including a hello7 cylinder, meanstherein for receiving and supporting a roll of sheet material, rolls forfeeding the material from the cylinder when the latter is rotated, afriction drive for operating said feed rolls, said drive including afriction wheel rotatably mounted for movement with the cylinder, astationary `disc also mounted in the cylinder and frictionally engagingsaid Wheel.

12. A machine of the class described, including a cylinder having meanstherein for receiving and supporting a roll of sheet material, rolls forfeeding the material from the cylinder when the latter is rotated, afriction drive for operating said feed rolls including a friction wheeladapted to frictionally engage a stationary disc also mounted in thecylinder, a stationary sleeve for slidably supporting said disc, meansfor preventing relative rotation of the disc upon the sleeve, and a rodaxially mounted in said sleevey and having a threaded connection withthe disc whereby, when the rod is relatively rotated, the disc will beaxially moved to increase or decrease the frictional contact betweenwheel and disc.

13. A machine of the class described, including a hollow cylindercomprising two sections secured together, one section having meanstherein for receiving and supporting a roll of sheet material, amechanism for feeding the material from the cylinder through an openingin the periphery thereof, and a device for transversely severing thematerial at the periphery of the cylinder, upon a predetermined rotationthereof, and the other section having a driving mechanism therein forcontinuously operating said material feeding mechanism, when thecylinder is rotated.

14. A machine of the class described, in

cluding a hollow cylinder comprising 'two sections secured together foroperation as a unit, one section having means therein for receiving andsupporting a roll of sheet materi-al, a mechanism for feeding thematerial from the cylinder through an opening in the periphery thereof,and a device for transversely severing the material at the periphery ofthe cylinder, -upon a predetermined rotation thereof, the other sectionhaving a driving mechanism therein for continuously operating saidmaterial feeding mechanism, when the cylinder is rotated, said drivingmechanism comprising a shaft diametrically mounted in said section andhaving a geared connection with said feed-- ing mechanism, and afriction wheel mounted upon said shaft and engageable with a stationarydisc mounted within said section. 15. The combination with a drivencylinder having an aperture in the peripheral wall thereof, of a spindleaxially mounted therein and adapted to support a roll of sheet material,feed rolls adjacent the aperture for feeding the material from thecylinder through said aperture, a drive shaft diametrically mounted inthe cylinder and having a geared connection with the feed rolls, and afriction drive within the cylinder for operating the drive shaft. j

16. The combination with a cylinder mounted for rotation and having anelongated opening in its periphery, extending lengthwise of thecylinder, of a roll of sheet material mounted in the cylinder andadapted for relative rotation therein, power-operated feed rolls in thecylinder for feeding the sheet of material therefrom through saidopening, when the cylinderis rotated, a friction drive for the feedrolls, comprising a disk and a wheel frictionally engaged therewith andadjustable to vary the feed of the material, and a cutting means mountedin the cylinder and adapted to sever the sheet adjacent the cylinderperiphery, upon a pre- Ydetermined rotation of said cylinder.

In witness whereof, I have hereunto set my hand this 18th day ofOctober, 1926. CHARLES E. DAMMART.

